Valve



May 24, 1927.

...Illlll KI".

F. A. VOGT ET AL VALVE Filed Jan. 22, 1926 Patented May 24, 1927.`

y' UNITED STATES PATENTV ori-fics.,y

FRANK A. VOGT, ELMER FLEISCH, AND HUGO GOLDSMITH, OF CINGIlNl'N'A'JI,OHIO, AS"v SIGNOBS T THE IP. GOLDSMITH SONS COMPANY, 0F CINCINNATI,OHIO, A COBf Pom'rIoN or omo.

`.Aplgnlcation led January 22, 1926. Serial No. 82,888'.

' It is our object to provide an inexpensive valve preferably made'entirely of resilient materialsuch as rubber which will be easy toinflate, which will \be very resistant against leakage and which willbeexceed- -ingly simple to deflate.

It is s ecically our object to provide a valve of tubular shape having aneck or stem of resilient material and in which a passage extends fromthe exterior partially through the stem lon itudinally. In combinationwith such a tu ular member7 it is our object to provide a slit extendinglaterally through the walls with a resilient member enclosing at leastthe slitted part of the tube, which resilient member will expand withinllation from position closing the lateral slit and which willthereafter seal the slit when inflation hasceased. It is further ourobject to provide the tubular member with a Sealed innerend which willform a seat for a valve defiating tool so that the stem of the valve maybe stretched andthe slit be thereby moved to unsealed position withrelation to the resilient member enclosing it. The delation ofthe valvemay be accomplished by the insertion of any narrow implement 'throughthe air passage which is of s uiiicient length to more than reach to thesealed end.

Referring to the drawings illustrating several modiica-tions of valvesembodying our invention Figure 1 is a sectional view of a valve in whichan outer resilient sealing member is formed from a bent over end of thevalve stem with the bent over portion held against the slit in the tubeby the natural stiffness of the valve stem and the body of material inthe bent over portion being of sulicient bulk to sta-y normally insealing position.`

Figure 2 is `a sectional view of another type of valve in which a bentover sealed end i is held in position by a tying member.

Figure 3 is a sectional view of a slightly l different type of valvehaving a resilient band surrounding the tube with the upper part of theband held in position by vul-- canizing to the valve stern.V

Figures 4, 5 and 6 are sectional views of a valve of the same type asthat illustrated in Figure 3 with the resilient band held in `place atits upper end by interlocking grooves and beading in the walls -of thestemand band.

We have illustrated inthe several embodiments of our invention the valvestem l, which must have an inner end of stretchable nature such asrubber. an iniating passage 2 of desired shape extending longitudinallyrom an open end at The valve stem hasl the outside vpart-Way through thetube,fand

l`the walls of the stem have a slit 3 close tothe inner sealed end ofthe tube, which ex-y tends laterally through the walls. The inner end ofthe tube may be sealed either by bend ing over the end of the stem andvulcanizing or cementing the end of the tube as indivcated.at 4in'Figures k1 and 2j,..or by.. only extending the longitudinal passagepartway through the tube leaving the inner end sealed "as indicated at 4in Figures 3 to 6. i All the embodiments, have a resilientl member 5which lies over the tube in the position perforated by the slit 3. Theresilient member 5 in each case is adapted during inflation to expandsuiiciently to allow air to enter through the slit. The members 5 arealso adapted, due to their resilience and the in ward pressure from theinflatable body of the ball, to seal the slit normally against leakageback through the air passage `in the stem. In the Figures 1 and 2 themember 5 is formed from an integral piece of the" stem which is bentover and either held in position by having suiiicient body to stay inposition as indicated in F igpre l or by a tying member 6 aslindicatedin Figure 2. Figure 3 shows the resilient member 5 l formed as a bandextending about the stem rooves 8 and beads 9 retain the upper which isusually termed the bladder the ianges 10 which may be vulcanized or'cemented to a bladder l0@l either on the outer or inner side in theobvious manner. The' modifications illustrated in Figures 1, 3 and 6have outer flanges 11, which may be suitably secured to a cover-flap11*3L on the outer side of the bladder.

In inflatingl a ball provided Wit-h a valve made in accordance With ourinvention, an inflating nozzle is inserted into the outer mouth of thepassage 2, and the air passes down through the passage and out throughthe slit 3 into the inflatable member in which the valve is secured. Thepressure Within the bladder in combination With the resilience of themember 5 effectively seals the slit against leakage back through the airpassage in the stem.

In delating` the bladder an elongated tool such as a piece of squareWire is insertedl in the air passage from the open end and pressedagainst the sealed end ofthe stem which stretches the stem so that theslit is moved to an unsealed position with reference to resilient member5. In the modifications shown in Figures 1 and 2, as the resilientmembers 5 are carried by the end of the stem, the resilient membersthemselves are moved to unsealing position, with the stretching of thestem. In the modifications shownin Figures 3 to 6, the stem is stretchedso that the slitted portion is carried below the resilient band.` It ispreferable in the modifications on the stem so that it will not movedown with the stretching of the stem so aS to continue to block theslitted vportion of the stem. A

Modifications of structure which provide valves which have a stretchablestem with a longitudinal passage closed at the inner end and with alateral slit which is adapted to be sealed against back leakage by aresilient member disposed exteriorly of the stem, We consider Within therange of mechanical equivalency.

Having thus described our invention, What We claim as new and desire tosecure by Letters Patent, is:-

A valve for inflatable articles comprising a stem portion having an openended air passage extending longitudinally thereinto, said stem having aclosed inner end, Walls of said stem having a slit extending laterallytherethrough adjacent said closed end, and a resilient member supportedby said stem enclosing the outer walls of said stern in the slittedportion, said stem being stretchable whereby pressure applied with aninserted piece within said air passage bearing against said closed endWill stretch said Stem and unseal said slit with relation to saidenclosing member.

FRANK A. VOGT. ELMER F LEISCH. HUGO GOLDSMITH.

